@article{fdi:010062568,
  title = {{A} 10 year record of black carbon and dust from a {M}era {P}eak ice core ({N}epal) : variability and potential impact on melting of {H}imalayan glaciers},
  author = {{G}inot, {P}atrick and {D}umont, {M}. and {L}im, {S}. and {P}atris, {N}icolas and {T}aupin, {J}ean-{D}enis and {W}agnon, {P}atrick and {G}ilbert, {A}. and {A}rnaud, {Y}ves and {M}arinoni, {A}. and {B}onasoni, {P}. and {L}aj, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} shallow ice core was extracted at the summit of {M}era {P}eak at 6376ma.s.l. in the southern flank of the {N}epalese {H}imalaya range. {F}rom this core, we reconstructed the seasonal deposition fluxes of dust and refractory black carbon (r{BC}) since 1999. {T}his archive presents well preserved seasonal cycles based on a monsoonal precipitation pattern. {A}ccording to the seasonal precipitation regime in which 80% of annual precipitation falls between {J}une and {S}eptember, we estimated changes in the concentrations of these aerosols in surface snow. {T}he analyses revealed that mass fluxes are a few orders of magnitude higher for dust (10.4 +/- 2.8 gm(-2) yr(-1)) than for r{BC} (7.9 +/- 2.8 mgm(-2) yr(-1)). {T}he relative lack of seasonality in the dust record may reflect a high background level of dust inputs, whether from local or regional sources. {O}ver the 10-year record, no deposition flux trends were detected for any of the species of interest. {T}he data were then used to simulate changes in the surface snow albedo over time and the potential melting caused by these impurities. {M}ean potential melting caused by dust and r{BC} combined was 713 kgm(-2) yr(-1), and for r{BC} alone, 342 kgm(-2) yr(-1) for r{BC} under certain assumptions. {C}ompared to the melting rate measured using the mass and energy balance at 5360ma.s.l. on {M}era {G}lacier between {N}ovember 2009 and {O}ctober 2010, i.e. 3000 kgm(-2) yr(-1) and 3690 kgm(-2) yr(-1) respectively, the impact of r{BC} represents less than 16% of annual potential melting while the contribution of dust and r{BC} combined to surface melting represents a maximum of 26 %. {O}ver the 10-year period, r{BC} variability in the ice core signal primarily reflected variability of the monsoon signal rather than variations in the intensity of emissions.},
  keywords = {{NEPAL}},
  booktitle = {},
  journal = {{C}ryosphere},
  volume = {8},
  numero = {4},
  pages = {1479--1496},
  ISSN = {1994-0416},
  year = {2014},
  DOI = {10.5194/tc-8-1479-2014},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062568},
}